South Africa country information

Common names: Daga salmon, Dusky kob, Dusky meagre
Occurrence: native
Salinity: brackish
Abundance: abundant (always seen in some numbers) | Ref:
Importance: highly commercial | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Occurs abundantly from Cape Agulhas to northern Natal (Ref. 4373). Prefers "linefish grounds", especially wrecks or high profile reefs associated with sand. Perhaps the premier angling species in estuaries and surf zones along the South African east coast. Status of stock indeterminate; possibly depressed; sustained landings in Natal; declining catch in the southeast coast where it is a major component of recreational and commercial linefish catch (Ref. 4332). Angling record: 73.5 kg; spearfishing record: 48.6 kg (Ref. 12484). Generally sold fresh; sometimes frozen. Also Ref. 4336, 9772, 75154.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Griffiths, M.H. and P.C. Heemstra, 1995
National Database:

Common names from other countries

日本黄姑鱼, Mulloway, Kob, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sciaenidae (Drums or croakers)
Etymology: Argyrosomus: Greek, argyros = silvered, silver + Greek, soma = body (Ref. 45335).
More on authors: Temminck & Schlegel.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marinhas; estuarina bentopelágico; oceanódromo (Ref. 51243). Tropical; 40°N - 39°S, 18°E - 155°E

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Indo-West Pacific: African southeast coast from Cape of Good Hope to southern Mozambique; northern Indian Ocean off Pakistan and northwest coast of India; northern Pacific from southern Korea and Japan, along the Chinese coast to Hong Kong; in Australia along the entire southern seaboard from North West Cape (north of Shark Bay) in Western Australia to the Burnett River (north of Brisbane) in Queensland.

Length at first maturity / Tamanho / Peso / Idade

Maturity: L_m 100.0 range ? - ? cm
Max length : 181 cm TL macho/indeterminado; (Ref. 11025); peso máx. Publicado: 75.0 kg (Ref. 11025)

Descrição breve Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 10 - 11; Raios dorsais moles (total) : 25 - 30; Espinhos anais: 2; Raios anais moles: 7; Vértebras: 25. In life, silvery grey becoming darker above and lighter below. Dorsal surface with a bluish bronze sheen that may become coppery on head. Preserved specimens vary in color according to treatment; usually grey but sometimes brown; darker above and lighter below (Ref 11025).

Adult fish found mainly near shore beyond the surf zone, occasionally going inshore. Juveniles exclusively found inshore. Juveniles recruit to estuaries at about 30 cm TL. An important food fish (Ref. 11025).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Griffiths, M.H. and P.C. Heemstra, 1995. A contribution to the taxonomy of the marine fish genus Argyrosomus (Perciformes: Sciaenidae), with descriptions of two new species from southern Africa. Ichthyol. Bull., J.L.B. Smith Inst. Ichthyol. No. 65, 40 p. (Ref. 11025)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Ameaçada (EN) (A2bd); Date assessed: 26 September 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

Pescarias: espécies comerciais; Aquacultura: espécies comerciais; peixe desportivo: sim

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 16.7 - 27.8, mean 25.3 (based on 600 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00977 (0.00536 - 0.01781), b=3.07 (2.92 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Nível Trófico (Ref. 69278): 4.5 ±0.6 se; based on diet studies.

Resiliência (Ref. 120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tm=6; tmax=40; K=0.03-0.24; Fec=900,000-1 million).

Prior r = 0.30, 95% CL = 0.20 - 0.45, Based on 1 full stock assessment.

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (66 of 100).

Categoria de preço (Ref. 80766): Medium.

Argyrosomus japonicus (Temminck & Schlegel, 1843)